Depends what type of patch you are using. Isit the ones with or without KitServer?
I can only help with the traditional style patches (through cv_0.img and cv_1.img).
You would have to swap the kits of teams that you want to use/not use in ML. Same applies with the players.
The kits would have to be replaced using GameGraphicStudio, and the player names can be edited in game. But if I remember correctly, the team names would have to be Hex Edited.
Heres the list of bin slots for the team kits (only has unliscensed teams on this list):
This would take alot of effort, so if you are still interested I'll help you look for a few tutorials.